The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 28, 2010
Filed:
Dec. 04, 2003
Geoffrey Spence, Malvern, GB;
Ira James Clarke, Malvern, GB;
Geoffrey Spence, Malvern, GB;
Ira James Clarke, Malvern, GB;
Qinetiq Limited, , GB;
Abstract
A signal separation method for separation of source signals from a composite signal expresses the composite signal as a series of values of signal amplitude. The source signals have periodicities similar or equal to p. The composite signal is portioned into sections which provide respective rows of a matrix X, in which successive rows represent successive sections. A singular value decomposition of the matrix X is performed to obtain two singular vector matrices U, V and a singular value matrix λ. An independent component analysis is performed on one of the singular vector matrices U, V to obtain an independent component matrix UR,RV and an associated component matrix RλV,UλR. One of the component matrices UR,UλRcontains estimated separated signal modulation envelopes and the other component matrix R2λV, RV contains estimated separated cyclets.